DNA analysis of soil from paw prints could help save Sumatra's tigers
Dr. Mrinalini Watsa, a researcher at San Diego Zoo in California, scoops up soil from a fresh paw print made by Rakan, a 4-year-old male Sumatran tiger who lives at the zoo, and secures it in a specimen jar.
Dr. Mrinalini Watsa, a researcher at San Diego Zoo in California, scoops up soil from a fresh paw print made by Rakan, a 4-year-old male Sumatran tiger who lives at the zoo, and secures it in a specimen jar.
